High-Voltage Power Supply Check

 

The High-Voltage Power Supply PCA

provides the necessary voltages for the

 

electrophotographic processes. A method for verifying the high-voltage system is

 

given in the table below.

 

Table 7-5

 

 

High-Voltage Power Supply Check

 

 

 

 

 

 

 

 

Checks

Action

 

Toner Cartridge Connection Points

Visually inspect the three connection points on the

 

 

underside, right end of the toner cartridge. If they

 

 

are dirty or corroded, clean the connections. Use

 

 

alcohol only. If damaged, replace the toner

 

 

cartridge. (See Figure 7-5 below.)

 

 

 

 

High Voltage Connector Assembly

This assembly uses spring-loaded pins to contact

 

 

the toner cartridge. (See Figure 7-6 on the following

 

 

page.) Verify that the pins are not dirty or corroded

 

 

and that the spring-loading action is functional. If the

 

 

pins are dirty, clean using alcohol only; if damaged,

 

 

replace the High Voltage Connector Assembly.

Figure 7-5

 

 

 

 

 

 

 

 

 

Toner Cartridge High Voltage Connection Points (1 of 2)

∙Charging (1)

∙Drum Ground (2)

∙Developing Roller (3)

7-24 Troubleshooting